#20 We Found Love-Rihanna

(photo by Getty Images)

#19 Scream-Usher

(Getty Images)

#18 It Will Rain-Bruno Mars

(Photo by Jacob Andrzejczak/Getty Images for Sports Illustrated)

#17 Shadow Days-John Mayer

(photo by Getty Images)

#16 Domino-Jessie J

(Photo by Gareth Cattermole/Getty Images)

#15 Call Me Maybe-Carly Rae Jepsen

(photo by Getty Images)

#14 Payphone-Maroon 5 Featuring Wiz Khalifa

(photo by Getty Images)

#13 The A Team-Ed Sheeran

(Photo by Samir Hussein/Getty Images)

#12 Wild Ones-Flo Rida Featuring Sia

(Photo by J. Dennis/Einstein/NBAE via Getty Images)

#11 Part Of Me-Katy Perry

(Photo by Kevin Winter/Getty Images)

#10-Turn Me On-David Guetta Featuring Nicki Minaj

(photo by Getty Images)

#9 What Makes You Beautiful-One Direction

(Photo credit Marty Melville/AFP/Getty Images)

#8 Drive By-Train

(Photo by Ethan Miller/Getty Images)

#7 Starships-Nicki Minaj

(Photo by Dimitrios Kambouris/Getty Images)

#6 I Won't Give Up-Jason Mraz

(Photo credit FREDERIC J. BROWN/AFP/Getty Images)

#5 Glad You Came-The Wanted

Photo/ Christopher Polk, Getty Images

#4 Stronger-Kelly Clarkson

(Photo by Kevin Winter/Getty Images)

#3 Somebody I Used To Know-Gotye

(photo by Getty Images)

#2 We Are Young-Fun.

(photo courtesy of Roadrunner Records)

#1 Rumour Has It-Adele

(Photo by Dave J Hogan/Getty Images)